When you discover abnormal sounds on your Lexus GS you tend to worry about them. Especially when you feel a noise when you accelerate on your Lexus GS. It is right away assimilated to an engine unit trouble and can therefore be considerable. As we know that you do not take these trouble lightly, we have decided to publish this content page to support you find the causes and get rid of this matter as quickly as possible. To do this, we will first see what are the oeigins of a high pitched noise when accelerating with my Lexus GS, then what is a whistling or ratling noise at the acceleration of my Lexus GS, then the origins of a noise that intensifies during acceleration and at last a noise that stops when I stop accelerating.
Ma Lexus GS makes a high-pitched noise when I accelerate:
If your Lexus GS makes a loud noise when you accelerate, it is quite conceivable that the alternator belt is the reason of your trouble. You will need to define if this noise happens abruptly and if it can stop as it started. The alternator belt is a wearing part that is used to get power to the secondary components of your Lexus GS’s engine and although it is less crucial than the timing belt it can bring about engine damage if it stops working. This noise may be a symptom of a slackened belt, in which case the tensioner roller or its wear and tear may be to blame. In any case, examine the state of your belt and its tension. If it causes this acceleration noise on Lexus GS, go to your mechanic.
Ma Lexus GS makes whining noise when I accelerate:
- Rattling or whistling noise generated by the turbo
- Humming noise caused by air leakage
If you have a power loss that occurs with the rattling noise when you accelerate with your Lexus GS, it is conceivable that your turbo is screwing up and some of its parts are at the end of their life. Check it and swap it if it is the reason, otherwise you risk clogging your engine in the long run. If you notice this blowing or whistling noise on your car, feel free to refer to this content about turbo noises on Lexus GS, if you would like more details.
If, on the other hand, you do not get any power loss due to an humming noise on your Lexus GS, it is more than likely that you have one of your junctions or air hoses that has holes. So examine the whole air supply system from your air filter to your engine to locate the source of this acceleration sound.
Ma Lexus GS makes an increasingly loud noise when I accelerate:
If, on the other hand, you have the feeling that the more you gain speed, the more your noise at acceleration on Lexus GS gets loud, then you will have to check out the rolling parts of your car. Indeed, if this loud noise does not emerge when you iddle, it is surely linked to your transmission, and, in general, to your wheels. The most known reason is the state of your bearings, so don’t forget to examine their state to be sure it is not the reason of this loud noise when you accelerate. If not, go to this document about the noises related to Lexus GS noise wheels.
Ma Lexus GS creates a noise when I accelerate that ends when I stop accelerating:
At last, if you experience a noise when accelerating with your Lexus GS and this noise which could be a cliking sound tends to reduce when you disengage (press the clutch pedal), then one of the wear parts of your clutch system may be the reason. Indeed, the clutch release bearings must be replaced almost every 120 000 / 130 000km. To evaluate it, you just have to see if you have more difficulty than usual shifting gears, if you feel a resistance either stronger or non-existent in the clutch pedal. If you have any of these signs of illness, go to your mechanic to change the clutch release bearings on your Lexus GS. Look at our article on clutch noise on Lexus GS for more information.
